.Net-将Settings.settings文件中的设置设置为null

Question

Question

Is it possible to override the value of a settings created in a settings file (Settings.settings) to be null in a app.config or web.config?

Scenario

I have a project ( SO.Example ) that has a Settings.setting file that defines a setting SetMeToNull :

I have another project ( SO.Example.Web ) that uses SO.Example . I would like to set SetMeToNull to null in the So.Exmaple.Web 's web.config:

   <SO.Example.Properties.Settings>
        <setting name="SetMeToNull" serializeAs="String">
            <value>[[NULL]]</value>
        </setting>
    </SO.Example.Properties.Settings>

Obviously there are ways to work around this if it's not possible, but it would be convenient if it was possible.

Justification

This may seam like an odd requirement when in most cases an empty string could comfortably sit in for a null string. At the moment, however, I'm faced with a case where a null string does not have the same meaning as an empty string. For the sake of the argument, let's just say SO.Example is a 3rd party library and I have no control over it. (Ie refactoring it would take more time than it's worth).

Answer 1

You can open the settings file with the XML editor instead of the default editor and set it manually to:

 <Setting Name="Setting" Type="System.String" Scope="User">
  <Value Profile="(Default)"></Value>
 </Setting>

But I wonder if it makes any sense to have a setting set to null..